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Author: hung-kung liu
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Displaying records 1 to 10 of 13 records.
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1. United States Federal Employees' Password Management Behaviors ‹ a Department of Commerce case study
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7991
Published: 4/8/2014
Authors: Yee-Yin Choong, Mary Frances Theofanos, Hung-Kung Liu
Abstract: Passwords are the most prevalent method used by the public and private sectors for controlling user access to systems. Organizations establish security policies and password requirements on how users should generate and maintain their passwords, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914843

2. Certified Transmittance Density Uncertainties for Standard Reference Materials using a Transfer Spectrophotometer
Series: Technical Note (NIST TN)
Report Number: 1715
Published: 11/28/2011
Authors: John Carlton Travis, Melody V Smith, Steven J Choquette, Hung-Kung Liu
Abstract: Overall uncertainties are evaluated for the certification of transmittance density (absorbance referred to air) and regular spectral transmittance for solid neutral density filter Standard Reference Materials by means of a transfer spectrophotometer. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908914

3. Linking Air and Vacuum Mass Measurement by Magnetic Levitation
Published: 5/12/2009
Authors: Zeina Jabbour Kubarych, Patrick J Abbott, Edwin Ross Williams, Ruimin Liu, Vincent J Lee, Hung-Kung Liu
Abstract: This paper describes a new approach to directly link air and vacuum mass measurements using magnetic levitation techniques. This procedure provides direct traceability to national standards, presently defined in air, without requiring the estimate o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824704

4. Three Statistical Paradigms for The Assessment and Interpretation of Measurement Uncertainty
Published: 1/12/2009
Authors: William F Guthrie, Hung-Kung Liu, Andrew L Rukhin, Blaza Toman, Chih-Ming Wang, Nien F Zhang
Abstract: The goals of this chapter are to present different approaches to uncertainty assessment from a statistical point of view and to relate them to the methods that are currently being used in metrology or are being developed within the metrology communit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51273

5. Uncertainty Analysis for Virtual Cement Measurement
Published: 9/13/2006
Authors: Blaza Toman, Adriana Hornikova, Robert Charles Hagwood, Hung-Kung Liu, Nien F Zhang, Edward Joseph Garboczi, Jeffrey W Bullard
Abstract: Virtual measurements are the outputs of well-defined mathematical models based on theoretical principles and simulation algorithms. The VCCTL (Virtual Cement and Concrete Testing Laboratory) is a software system built by the Material and Construction ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50888

6. Statistical Analysis of Key Comparisons with Linear Trends
Published: 8/1/2004
Authors: Nien F Zhang, Hung-Kung Liu, N Sedransk, W Strawderman
Abstract: A statistical analysis for Key Comparisons with linear trend is proposed. The approach has the advantage that it is consistent with the case in which there is no trend. The uncertainties for KCRV and the degrees of equivalence are also provided. As ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50565

7. Statistical Reference Datasets (StRD) for Assessing the Numerical Accuracy of Markov Chain Monte Carlo Software
Published: 12/1/2003
Authors: Hung-Kung Liu, William F Guthrie, D Malec, Grace L Yang
Abstract: In the Statistical Reference Datasets (StRD) project, NIST provided datasets on the web (http://www.itl.nist.gov/div898/strd/) with certified values for assessing the numerical accuracy of software for univariate statistics, linear regression, nonli ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150567

8. Performance Evaluation of Approaches to Combining Results From Multiple Methods
Published: 4/1/2003
Authors: Hung-Kung Liu, Nien F Zhang
Abstract: The problem of determining a consensus mean and its uncertainty from the results of multiple measurement methods or laboratories is an important problem. Many solutions, both Bayesian and non-Bayesian, to this problem have been proposed over the ye ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50804

9. Bayesian Approach to Combining Results From Multiple Methods
Published: 1/1/2001
Authors: Hung-Kung Liu, Nien F Zhang
Abstract: Many solutions to the problem of estimating the consensus mean from the results of multiple methods or laboratories have been proposed. In a Bayesian analysis, the consensus mean is specified through probabilistic dependency as either a ¿parent¿ or ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51092

10. An Approach to Combining Results From Multiple Methods Motivated by the ISO GUM
Series: Journal of Research (NIST JRES)
Published: 8/1/2000
Authors: M Levenson, D L. Banks, K Eberhardt, L M. Gill, William F Guthrie, Hung-Kung Liu, M Vangel, James H Yen, Nien F Zhang
Abstract: The problem of determining a consensus value and its uncertainty from the results of multiple methods or laboratories is discussed. Desirable criteria of a solution are presented. A solution based on the ISO Guide to the Expression of Uncertainty i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151758



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